- Bio Kard: "As leader of Shao Kahn's extermination squads, Motaro proved to the emperor the Centaurs' superiority over the Shokan. During the invasion of Earthrealm, he slew many kombatants before they could oppose Shao Kahn's rule. He will slay many more in the battle to come."
In the realm of Outworld, Motaro's race of Centaurians had come into conflict with the Shokan. Shao Kahn, Emperor of Outworld, had begun to favor the Centaurians over the Shokan, and had been punishing the latter, aiding the Centaurians in the defeat and subjugation of the Shokan race. When Kahn formed special extermination squads to eliminate the chosen warriors of Earthrealm during his invasion, Motaro was appointed to head this elite group of savage warriors. He was the one who killed Johnny Cage in the events of MK3/UMK3/MKT.
Sonya Blade's defeat of Kano during the events of Mortal Kombat Trilogy had resulted in the Black Dragon member being thrown from a skyscraper to the streets below. Motaro recovered the severely injured Kano, and brought him back to Shao Kahn's fortress. After reviving him with magic, Motaro then imprisoned the criminal so that he could later be punished by Kahn for failing to defeat Sonya.
It is at this point that Motaro was assaulted and supposedly killed by Sheeva. However, he survived but barely as he returns in Mortal Kombat: Armageddon, but since then the Centaurs have been put under a curse by the Shokan, turning him and the rest of his race into bipedal Minotaurs. This gave him and his race another reason to hate the Shokan. Motaro swore to make the Shokan pay dearly for this act.
Motaro fights on the Forces of Darkness during the final battle. Ultimately, as with nearly every kombatant, He is killed at the end of Armageddon.
- Mortal Kombat Trilogy: "Motaro wins."
- Armageddon: "Flames lashed at Motaro's body as Blaze released his energy. The searing pain consumed Motaro as he staggered about the top of the pyramid. When at last the fire dissipated, Motaro felt the familiar sensation of walking on four legs! He had undone the curse that had transformed his Centaur race into Minotaurs. With renewed purpose, Motaro vowed that the Shokan would pay dearly for their treachery."